Recent content by barendfaber

good morning voko! Sorry for the hassle, maybe that may mean smaller magnets and smaller coils, I had this one in mind originally and changed it, should have maybe stuck with the sandwich design. Yes, I figured, input less inefficiencies = output. If I can just figure out more or less what...

hi dave, yes, absolutely aware of this. i want to build my first wind turbine, however need to figure out what my generator needs to look like in order for me to proceed.

Hi voko, Thank you for the extra time you spent on this, and thanks for laying out the formulation sin such detail. I ahve been able to easily do the calculations following your instructions. I have 2 more questions: 1. If we had to change the design to 2 magnets per coil instead of 1, so...

Thank you voko, you have been a great help!

OK, I will look into it and also work with what you gave me. Just a few points more: 1. If I make my magnets smaller, the cross sectional area of my coils will also become smaller, and I will need to adjust the formulation to keep this in mind? 2. You mentioned "so that means the wire must...

Yes, all the generators are working. I saw one for a 2.5 kW 180 rpm generator (they had output at various rpm's, the main one being 180 rpm), but no specs on magnet size or strength, or copper wire gauge, length or windings. So good paper but not helpful if you want to replicate it. I do not...

Voko, just to give you an overview of where I am. I have been trying to research magnetic generators on the internet for some time now, and have about 10 PDF's with different magnetic generators, ranging from 1 kW to 1.5 Mw. It always fails to stipulate magnet size, coil gauge and turns, this...

I am unsure about that one. I would like to build a 2.5 kW generator, this will be my first one, but as you most probably have seen from my posts and ramblings, I am very much a newby and am starting from scratch. It seems you are very familiar with this, could I ask what you would recommend...

voko, I think I just confused myself again. Let's say I get Neodymium magnets, magnetized to 1.4 Tesla. If I change my magnet size to 8 cm x 10 cm as an example, what Tesla can I use in my formulation? Should I use 0.08 m x 0.1 m = 0.008 sq. m x 1.4 Tesla, or have I got the wrong end of the...

Magnets are still in the development stage. Wow, your right, two iPhones together might be a bit much, will adjust the settings to see if I can get a smaller area with more turns?

Great minds think alike! You replied just as I typed mine. I am based in the UK, but will check USA gauge and find one similar this side. Now I have my coils, windings and size, pretty chuffed, thank you! Last one, now I need the torque. As per your comments "Well, this is actually quite...

Will see what I can do with a book, however working with you is great as you give real time solutions, and if I get stuck you help. I see where I went wrong. From the picture in my first post, at the top I have two North poles next to each other, and at the bottom I have 2 South poles, so I...

To the untrained man this can get complicated very quickly! OK, so using your formula, I need to adjust it to: 2 * 3 revolutions * 22 magnetic poles (is this right?) * 317 windings * 0.35 Tesla * 0.015 m2 (approximate) = 219.681 (this is volt right?). As per the above, am I right in...

Thanks voko, you are a great help! I have found this site : http://www.6pie.com/faradayslaw.php, and have used this to calculate how many windings I propose I should have. N = -1 * (-V/ change in (( tesla * area meters squared)/ seconds)) Volt per coil = 5 V Magnetic Flux (I...

Please bear with me, I have not done maths or science for 20 years since I left school so am very rusty! OK, so power is 2.5 kW (or a little more). Frequency is 18 coils x 22 magnets x 3 radians per second? For angular velocity, I found this...